"It was a raid conducted under the provisions of PMLA", said Arun Natrajan.
"Since they had to justify the search, they took some background papers related to a statement made by the government in Parliament in 2012-13". It was alleged that Karti used his father Chidambaram's influence to get the foreign direct investment (FDI) approval for the deal. "The ED has no jurisdiction to investigate under PMLA" Chidambaram added.
Speaking to media on ED raids, the senior Congress leader said that "There is no FIR concerning a scheduled crime by CBI or any agency. In Chennai also they found nothing, seized nothing", he claimed.
The ED had registered a money laundering case against the former Finance Minister's son in May 2017.
He has been asked to appear by the agency on January 16 in this case. "It's a comedy of errors that my Chennai residence and Delhi residence have been raided thrice and the ED has found nothing".
Those searched include a chartered accountant linked to Karti, his personal assistant and Karti's residence at Thousand Lights area in Chennai, they said.
The Airtel-Maxis case was part of the wider 2G scam that engulfed the UPA regime.
Karti is facing investigation in connection with the role of facilitating the approval of the Foreign Investment Promotion Board (FIPB) to INX Media Limited in 2006.
It also found that the company promoted by Karti and P Chidambaram's nephew allegedly received two lakh dollars from Maxis Group in guise of software consultancy. The ED alleged that FIPB approval in the Aircel-Maxis FDI case was granted in March, 2006 by the then finance minister despite he was capable to agreement on project proposals only up to Rs 600 crore and more that it needed the approval of the Cabinet Committee on Economic Affairs (CCEA).